CN104394557B - Apparatus and method for facilitating the switching in TD SCDMA systems - Google Patents
Apparatus and method for facilitating the switching in TD SCDMA systems Download PDFInfo
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- H—ELECTRICITY
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- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/16—Performing reselection for specific purposes
- H04W36/18—Performing reselection for specific purposes for allowing seamless reselection, e.g. soft reselection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0055—Transmission or use of information for re-establishing the radio link
- H04W36/0072—Transmission or use of information for re-establishing the radio link of resource information of target access point
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Abstract
Provide the method and apparatus for facilitating the switching in TD SCDMA systems.This method may include：Launch data to service node B using first group of resource of assignment；And launch the data at least one adjacent node B using the second group of resource assigned simultaneously.
Description
It is on May 11st, 2010 applying date that the application, which is, the application for a patent for invention of Application No. 201080001202.8
Divisional application.
The cross reference of related application
This application claims entitled " the APPARATUS AND METHOD FOR submitted on October 7th, 2009
FACILITATING HANDOVER IN TD-SCDMA SYSTEMS " U.S. Provisional Patent Application No.61/249,337 power
Benefit, the entire disclosure of which is expressly incorporated herein by quoting.
Technical field
Each scheme of the disclosure generally relates to wireless communication system, more particularly, is related to convenient progress time division synchronization code
The soft handoff scheme divided in multiple access (TD-SCDMA) system.
Background technology
Cordless communication network is widely deployed to provide various communication services, for example, phone, video, data, messaging,
Broadcast etc..The network is typically multi-access network, supports that multiple users are communicated by shared available Internet resources.The network
An example be universal terrestrial access network (UTRAN).UTRAN is one as Universal Mobile Telecommunications System (UTMS)
The Radio Access Network (RAN) that part is defined, wherein Universal Mobile Telecommunications System (UTMS) are third generation affiliate meters
Draw the third generation (3G) mobile phone telephony that (3GPP) is supported.UMTS is the follow-up of global system for mobile communications (GSM) technology, when
It is preceding to support various air-interface standards, such as WCDMA (W-CDMA), TD-CDMA Time Division-Code Division Multiple Access (TD-CDMA) are with timely
Point-S-CDMA-Synchronous Code Division Multiple Access (TD-SCDMA).For example, China is promoting TD-SCDMA to be connect in the air as bottom in UTRAN frameworks
Mouthful, wherein using existing GSM infrastructure as core network.UMTS also supports the 3G data communication protocols of enhancing, such as at a high speed
Downlink packet data (HSDPA), it provides higher data transmission bauds and capacity to associated UMTS network.
As the demand accessed to mobile broadband constantly increases, research and development continues promoting the development of UMTS technologies,
Not only meet ever-increasing the needs of being accessed to mobile broadband, also promote and strengthen experience of the user to mobile communication.
The content of the invention
Illustrated below is the brief overview of one or more schemes, to provide the basic comprehension to these schemes.This general introduction
The exhaustive overview of not all scenario, and both it is not intended to identify the key or important elements of all schemes, also unexpectedly
Figure describes the scope of any or all schemes.Its sole purpose be illustrate in simplified form one or more schemes some are general
Read, the preamble as the more detailed description book illustrated below.
In a scheme of the disclosure, a kind of method includes：Launch number to service node B using first group of resource of assignment
According to；And launch the data at least one adjacent node B using the second group of resource assigned simultaneously.
In a scheme of the disclosure, a kind of device includes：For being sent out using the first group of resource assigned to service node B
Penetrate the module of data；And for launching the data at least one adjacent node B using the second group of resource assigned simultaneously
Module.
In a scheme of the disclosure, a kind of computer program product includes computer-readable medium, and the computer can
Reading medium includes：For launching the code of data to service node B using the first group of resource assigned；And simultaneously using assignment
Second group of resource at least one adjacent node B launch data code.
In a scheme of the disclosure, a kind of device includes：At least one processor；And memory, it is coupled to institute
State at least one processor.In this scheme, at least one processor can be configured to：Use first group of assignment
Resource launches data to service node B；And launch institute at least one adjacent node B using the second group of resource assigned simultaneously
State data.
In order to realize foregoing and related objective, one or more schemes include below completely description and will in right
The feature specifically noted in asking.Description below and accompanying drawing illustrate some illustrative aspects of one or more schemes.
However, these features simply have an indication that a few in the various modes for the principle that can use each scheme, and this explanation
Book is intended to include all these schemes and its equivalent.
Brief description of the drawings
Fig. 1 is the block diagram for the example for conceptually illustrating telecommunication system.
Fig. 2 is the block diagram for the example for conceptually illustrating the frame structure in telecommunication system.
Fig. 3 is the exemplary system based on TD-SCDMA according to a scheme, wherein advancing over time, there is multiple UE
Communicated with node B.
Fig. 4 is the example T D-SCDMA frame structures for being used to facilitate soft handover similar scheme according to a scheme.
Fig. 5 is the block diagram according to the various Packet Data Units (PDU) with sequence number of a scheme.
Fig. 6 is the block diagram for being used to facilitate the example wireless communication device of soft handover similar scheme according to a scheme.
Fig. 7 is the block diagram according to the network switching monitoring system of a scheme.
Fig. 8 is the block diagram of node B example for conceptually illustrating to be communicated with UE in telecommunication system.
Fig. 9 is that conceptually explanation is performed to realize the work(of the example modules of the functional characteristic of the disclosure scheme
Can block diagram.
Embodiment
The detailed description provided below in conjunction with the accompanying drawings is will be as the description to various configurations, rather than to represent can be real
Apply unique configuration of concept described herein.Detailed description includes detail, saturating its purpose is to provide each conception of species
Thorough understanding.It is apparent, however, to one skilled in the art, that the implementation of these concepts can not need these specific thin
Section.In some instances, known features and part are shown in form of a block diagram, to avoid obscuring these concepts.
Referring now to Fig. 1, the block diagram for illustrating the example of telecommunication system 100 is shown.What is proposed in disclosure full text is various
Concept can be realized by a variety of telecommunication systems, the network architecture and communication standard.It is for example nonrestrictive,
The scheme of the disclosure shown in Fig. 1 is referred to and provided using the UMTS system of TD-SCDMA standards.In this example, UMTS systems
System includes (Radio Access Network) RAN102 (for example, UTRAN), its various wireless service of offer, including phone, video, data,
Messaging, broadcast and/or other services.RAN 102 is segmented into multiple RNSs (RNS), such as RNS
107, each is controlled by radio network controller (RNC), such as RNC 106.For clarity, illustrate only
RNC 106 and RNS107；However, in addition to RNC 106 and RNS 107 RAN 102 can also include any amount of RNC and
RNS.The device that RNC 106 is the distribution of the Radio Resource in main responsible RNS 107, reconfigures and discharge.RNC 106 can
It is mutual to be come by various types of interfaces (such as direct physical connection, virtual network etc.) using any appropriate transmission network
The other RNC (not shown) being connected in RAN 102.
The geographic area that RNS 107 is covered is segmented into multiple cells, and wireless transceivers devices therein are to each cell
Serviced.Wireless transceivers devices commonly referred to as node B in UMTS applications, but those skilled in the art are also possible to it
Referred to as base station (BS), base station transceiver (BTS), wireless base station, transceiver, transceiver function, Basic Service Set (BSS),
Extended service set (ESS), access point (AP), or some other suitable terms.For clarity, two node B are shown
108、109；However, RNS 107 can include any number of radio node B.Node B 108,109 is to any number of movement
Device provides the WAP to core network 104.The example of mobile device includes cell phone, smart phone, session hair
It is wide to play agreement (SIP) phone, laptop computer, notebook computer, net book, smartbook, personal digital assistant (PDA), satellite
Broadcast, global positioning system (GPS) equipment, multimedia equipment, video equipment, digital audio-frequency player (for example, MP3 player),
Camera, game console or any other similar function device.Mobile device is commonly referred to as user in UMTS applications
Equipment (UE), but those skilled in the art be also possible to call it as movement station (MS), subscriber station, mobile unit, subscriber unit,
Radio-cell, remote unit, mobile device, wireless device, Wireless Telecom Equipment, remote equipment, mobile subscriber station, access terminal
(AT), mobile terminal, wireless terminal, remote terminal, hand-held set, terminal, user agent, mobile client, client, or some
Other suitable terms.For illustrative purposes, 3 UE 110 are shown, its with node B 108,109 it is at least one enter
Row communication.Downlink (DL), is also forward link, refers to the communication link from node B to UE, up-link (UL), also cries
Reverse link, refer to the communication link from UE to node B.
In addition, RAN 102 can include switching monitoring system 130, switching monitoring system 130 is operable to monitor, assisted
Tune and/or control node B 108,109.In an arrangement, switching monitoring system 130 can be included in RNC 106, one or
Within multiple servers etc..
In an arrangement, switching monitoring system 130 can also include handover module 132, and handover module 132 can operate
To distribute time slot for service node B 108 and adjacent node B 109.In an arrangement, handover module 132 may operate in UE
May be coupled to multiple cells it is predefined it is Zone switched in.In another arrangement, handover module 132 can include service section
Point B time slots distribute 134 and adjacent node B time slots distribution 136, and service node B time slots distribute the distribution of 134 and adjacent node B time slots
136, which are operable to be directed in different time-gap the DL communications from serving cell and neighbor cell, carries out time distribution, and also
The UL communications for proceeding to serving cell and neighbor cell in different time-gap during switching can be allowed.In this way, propose when
Gap (TS) distribution can allow UE 110 being launched and received by DPCH (DPCH) at different moments, and with
Time division way obtains multiple links with different nodes B 108,109 simultaneously.In addition, time disjoint TS distribution can reduce
The complexity of the hardware of UE 110.For example, UE 110 need not be as required by such as CDMA/WCDMA soft handovers simultaneously
Processing is from more than a node B108,109 DL signals.On the contrary, using soft handover similar scheme, processing can serialize.
In addition, because communication will not be interrupted as during direct-cut operation, it is possible to obtained from the path diversity in soft handover similar scheme
Performance is obtained to improve.Further, since UE 110 can be transmitted in different TS, it is possible to obtained performance from time diversity and carried
It is high.In addition, during switching and changing, UE 110 can be established once and the DL of target node b 109 (be tuned to receive DPCH)
(launch with UL to DPCH).In this way, UE 110 can measure Primary Common Control Physical Channel/downlink pilot frequency channel (P-CCPCH/
DwPCH power) and timing, and estimate before UL DPCH transmittings for UL DPCH new power and timing.
In RAN 102 scheme, because UE 110 can be in the different time to different node B 108,109
Launched, so UE can utilize different UL timings to be adjusted to allow for required for different nodes B 108,109
UL it is synchronous.In addition, soft handover similar scheme can allow stream voice/data packet be transferred to different node B 108,
109 and may not be in same frame.Soft handover similar scheme can use existing RLC (wireless spread-spectrum technology) agreement with profit
Diversity combining is provided with the packet rearrangement such as based on sequence number and the function of repeating to detect.Fig. 5 depicts various grouped datas
The sequence number of unit (PDU).As shown in Figure 5, answer-mode (AM) can have the sequence number of 11 bits, and unacknowledged mode (UM) can
With the sequence number with 7 bits.
At work, AM can be used for data, and UM can be used for voice service.In addition, at work, received if worked as
Sequence number earlier is not received by during later sequence number, then the PDU each received can be stored in network components (for example, section
Point B 108,109, RNC 106 etc.) reception buffer in.It can be that the sequence number lost waits for a period of time to receive rlc protocol,
After such time, the sequence number of loss can be abandoned and the sequence number window for handling the PDU received can be updated
Or change and arrive later sequence number.Additionally or instead, if the PDU received, which has, is handling the sequence that is received outside window
Number, then it can abandon the PDU.
In this way, utilize the time flexibility discussed above in terms of the PDU of stream is sent, it is possible to reduce and/or eliminate meeting
In other soft handoff schemes (such as, CDMA/WCDMA soft handovers) observe etc. transmission at same frame.Therefore, above-mentioned soft handover phase
Path diversity and time diversity offer seamless switching can be utilized like scheme and avoid call drop.In addition, the program can provide UL
Synchronously and can be by making processing serialization reduce the processing load in UE.
As shown, core network 104 includes GSM core networks.However, it would be recognized by those skilled in the art that,
Each conception of species provided in disclosure full text can be realized in RAN or other suitable access networks, to be provided pair for UE
Different from the access of all kinds core network of GSM network.
In this example, core network 104 is supported and mobile switching centre (MSC) 112 and gateway MSC (GMSC) 114
Circuit switched service.One or more RNC (such as RNC 106) may be coupled to MSC 112.MSC 112 is control call setup
The device of vertical, call routing and UE mobility functions.MSC 112 also includes VLR Visitor Location Register (VLR) (not shown), and it is wrapped
User related information during being in the overlay areas of MSC 112 containing UE.GMSC 114 provides gateway for UE by MSC 112 and come to visit
Ask circuit-switched network 116.GMSC 114 includes attaching position register (HLR) (not shown), and it includes user data, such as
Reflection specific user has ordered the data of service details.HLR is also associated with authentication center (AuC), and the authentication center includes
The specific authentication data of user.When receiving the calling for particular UE, GMSC 114 inquires about HLR to determine UE position,
And forward calls to the specific MSC for servicing the position.
In an arrangement, UE 110 can include the handover module of convenient soft handover similar scheme as discussed above.
In one scheme, handover module is operable to be embodied as service node B 108 and node B 109 distribution time slots.This distribution
Can make UE 110 once established during the similar transformation of soft handover with the DL of target neighbor cell (be tuned to receive DPCH) and
UL (launches) to DPCH.In this way, UE can measure P-CCPCH/DwPCH power and timing, and estimate before UL DPCH transmittings
Count for UL DPCH new power and timing.It is referred to Fig. 6 and exemplary description is carried out to UE (such as, UE 100).
Core network 104 also uses Serving GPRS Support Node (SGSN) 118 and Gateway GPRS Support Node (GGSN) 120
To support packet-data, services.GPRS represents general packet radio service, and it is designed as with than standard GSM circuit switched data
Service can obtain the higher speed of speed to provide packet-data, services.GGSN 120 is that RAN 102 is provided to packet-based
The connection of network 122.Packet-based network 122 can be internet, private data network or some other appropriate bases
In the network of packet.GGSN 120 major function is to provide packet-based network connection for UE 110.Packet passes through
SGSN 118 is transmitted between GGSN 120 and UE 110, and wherein SGSN 118 is mainly performed in packet-based domain and MSC
The 112 function identical functions of performing in the circuit switched domain.
UMTS air interfaces are spread-spectrum direct sequence CDMA (DS-CDMA) systems.By being multiplied by referred to as chip
PRBS pseudo-random bit sequence, user data is extended by spread-spectrum DS-CDMA in much broader bandwidth.TD-SCDMA is marked
Standard is to be based on the Direct swquence spread spectrum technology, and also requires time division duplex (TDD), rather than in many fdd modes
The FDD (FDD) used in UMTS/W-CDMA systems.TDD is for the up-link between node B 108 and UE 110
(UL) and downlink (DL) uses identical carrier frequency, but up-link and downlink transmission are divided into difference in carrier wave
Time slot.
Fig. 2 shows the frame structure 200 of TD-SCDMA carrier waves.As shown, it is 10ms that TD-SCDMA carrier waves, which have length,
Frame 202.Frame 202 has 2 5ms subframe 204, and each subframe 204 includes 7 time slot TS0~TS6.First time slot TS0 leads to
Downlink communication often is distributed to, and the second time slot TS1 is commonly assigned to uplink communication.Remaining time slot TS2~TS6 can
For up-link or downlink, this causes during higher data transmission time on up-link or downlink direction
There is greater flexibility.Down link pilot timeslot (DwPTS) 206, protection period (GP) 208 and uplink pilot time slot
(UpPTS) 210 (also referred to as uplink pilot channels (UpPCH)) are between TS0 and TS1.Each time slot TS0-TS6 can be with
Data transfer is allowed to be multiplexed on maximum 16 Code Channel.Data transfer on Code Channel is included by intermediate code
(midamble) 214 2 data divisions 212 separated, it is afterwards protection period (GP) 216.Intermediate code 214 can be used for for example
The function of channel estimation, and GP 216 can be used for avoiding the interference between burst (burst).
Referring now to Fig. 3, exemplary TD-SCDMA system 300 is shown, wherein advancing over time, there are multiple UE
(304,306,308) are communicated with node B 302.Generally, in TD-SCDMA system, multiple UE can be (all with node B
Such as, node B 302) communication in share common bandwidth.Compared with CDMA and WCDMA system, the opposing party of TD-SCDMA system
Case is that up-link (UL) is synchronous.That is, in TD-SCDMA system, different UE (304,306,308) can be in UL
Upper synchronization, so as to almost reach node B simultaneously by all signals of UE (304,306,308) transmittings.For example, in described side
In case, each UE (304,306,308) is different from service node B 302 distance.Therefore, in order that UL transmission is almost arrived simultaneously
Up to node B 302, each UE can be launched in the different time.As illustrated, UE 308 can be with node B 302 apart
Farthest, and can closer to UE before perform UL transmission 314.In addition, UE 306 can be than UE 308 closer to node B
302, and UL transmission 312 can be performed after UE 308.Similarly, UE 304 can be closer to node B 302, and can
To perform UL transmission 310 after UE 306 and 308.The timing of UL transmission (310,312,314) can make signal almost same
When reach node B timing.
Referring now to Fig. 4, the example T D-SCDMA frame structures 400 for facilitating soft handover similar scheme are shown.It is logical
Often, as reference picture 2 is described, a frame can include two subframes 402, and each subframe 402 can include 7 time slots.
In this 7 time slots, the time slot of some definition can be used for DL communications 404, and the time slot of other definition can be used for UL communications 406.
In TD-SCDMA system, there can also be a hypothesis：Service node B 408 frame timing and adjacent target node B (for example,
Adjacent node B) 410 frame timing basic synchronization.In this way, during soft handover similar scheme is realized, UE 412 can be directed to not
DL communications are received using different time-gap with node B, and different nodes B can be directed to and use different time-gap transmitting UL communications.Example
Such as, UE 412 can be communicated in TS2 by UL DPCHs (DPCH) 414 with service node B 408, and can be
TS3 is communicated by UL-DPCH 416 with target node b 410.Thereafter, DL DPCH can be passed through in TS4, service node B 408
418 communicate with UE 412, and can be communicated in TS5, adjacent node B 410 by DL DPCH 420 with UE 412.When this
Gap distribution UE 412 can be allowed to be launched and received to different nodes B by DPCH at different moments, and thus with when
Point mode obtain with the multiple of different nodes B and meanwhile link.
Referring now to Fig. 5, the various Packet Data Units (PDU) for having related sequence number according to a scheme are depicted
500.Generally, by using soft handover similar scheme, UE can be launched in different time to different nodes B, and UE can
To be adjusted using different UL timings to allow to be directed to the UL required for different nodes B synchronous.In addition, the similar side of soft handover
The voice/data packet that case can allow to flow is transferred to different node B and may not be in same frame.The similar side of soft handover
Case can utilize the packet such as based on sequence number to reset and repeat detection using existing RLC (wireless spread-spectrum technology) agreements
Function provides diversity combining.
As shown in Figure 5, answer-mode (AM) 504PDU has the sequence number 514 of 11 bits, and unacknowledged mode (UM) 502 has
There is the sequence number 512 of 7 bits.In addition, both PDU can include data/control field 506 and other fields 508.Working
In, AM PDU 504 can be used for data, and UM PDU 502 can be used for voice service.In addition, at work, if when reception
Sequence number (512,514) earlier are not received by during to later sequence number (512,514), then the PDU each received can be deposited
Storage is in network components (for example, base station 110, RNC 130 etc.) reception buffer.It can be the sequence lost to receive rlc protocol
Number (512,514) wait for a period of time, and after such time, can ignore the sequence number (512,514) of loss, and can be
Later sequence number (512,514) is arrived for handling the PDU received sequence number window renewal or changing.It is additional or alternative
Ground, if the PDU received, which has, is handling the sequence number (512,514) that is received outside window, then it can abandon the PDU.
Referring now to Fig. 6, show the user equipment (UE) 600 that can facilitate soft handover similar scheme (for example, client sets
Standby, Wireless Telecom Equipment (WCD) etc.).UE 600 includes receiver 602, and receiver 602 is from for example one or more reception antennas
(not shown) receives one or more signals, and typical operation is performed (for example, filtering, amplification, down coversion to the signal of reception
Deng), and the signal after regulation is digitized to be sampled.Receiver 602 can also include：Oscillator, it can be carried
For the carrier frequency of the demodulation of the signal for reception；And demodulator, it can be demodulated to the symbol of reception, and them
Processor 606 is supplied to for channel estimation.In an arrangement, customer equipment 600 can also include auxiliary receiver 652
And the information of other channel can be received.
Processor 606 can be：It is exclusively used in analyzing the information received by receiver 602 and/or produces by one or more
The processor of the information of emitter 620 (for convenience of explanation, only showing an emitter) transmitting；Control one of UE 600 or
The processor of multiple parts；And/or both analyze the information received by receiver 602 and/or auxiliary receiver 652, produce by sending out
The information that machine 620 is launched on one or more transmitting antenna (not shown) is penetrated, controls UE 600 one or more parts again
Processor.
UE 600 can comprise additionally in memory 608, and memory 608 is operatively coupled to processor 606 and can deposited
Store up the data to be launched, the data received, the information related to available channel, signal and/or interference strength with being analyzed
The data of association, the channel to assigning, power, the related information such as speed, and for estimating channel and through channel progress
Any other suitable information of communication.Memory 608 can store in addition to be estimated with (for example, being based on performance, based on capacity etc.)
Meter and/or the agreement being associated using channel and/or algorithm.
It will be realized that data storage device (for example, memory 608) described herein can be volatile memory or
Nonvolatile memory, or can not only include volatile memory but also including nonvolatile memory.As an example and
Unrestricted, nonvolatile memory can include read-only storage (ROM), programming ROM (PROM), electrically programmable ROM
(EPROM), electric erasable PROM (EEPROM) or flash memory.Volatile memory can include being used as external cache
Random access memory (RAM).Unrestricted as an example, RAM can be obtained with many forms, such as synchronously
It is RAM (SRAM), dynamic ram (DRAM), synchronous dram (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced
SDRAM (ESDRAM), synchronization links DRAM (SLDRAM) and Direct-type Rambus RAM (DRRAM).This thematic system and side
The intention of memory 608 of method includes but not limited to the memory of these and any other suitable type.
UE 600 can also include the handover module 610 that soft handover similar scheme is facilitated for UE 600.The one of UE 600
In individual scheme, handover module 610 is operable to be embodied as serving BS 612 and adjacent base station 614 distributes time slot.This distribution
Can make UE 600 once established during the similar transformation of soft handover with the DL of target neighbor cell (be tuned to receive DPCH) and
UL (launches) to DPCH.In this way, UE can measure P-CCPCH/DwPCH power and timing, and estimate before UL DPCH transmittings
Count for UL DPCH new power and timing.
In addition, UE 600 can include user interface 640.User interface 640 can include：Input mechanism 642, for producing
The raw input for UE 600；With output mechanism 644, the information used for generation by the user of wireless device 600.For example,
Input mechanism 642 can include the mechanism of button or keyboard, mouse, touch-screen display, microphone etc..In addition, for example,
Output mechanism 644 can include display, audio tweeter, haptic feedback mechanism, Personal Area Network (PAN) transceiver etc..Showing
Each scheme in, output mechanism 644 can include the display for being operable to present the content of image or video format, or present
The audio tweeter of the content of audio format.
Reference picture 7, show the detailed of switching monitoring system 700 (the switching monitoring system 130 such as, described in Fig. 1)
Block diagram.Switching monitoring system 700 can include at least one any kind of hardware, server, personal computer, small-sized calculating
Machine, mainframe computer or as special or universal computing device any computing device.In addition, in switching monitoring system 700
Work or the module described herein performed by switching monitoring system 700 and application can be as illustrated in fig. 7 all in lists
Performed on the individual network equipment, or alternatively, in other schemes, server, database or the computer equipment of separation can be with
Cooperate to the data of usable form being supplied to each side, and/or in UE110, node B 108,109 and by switching monitoring
Single key-course is provided in data flow between the module of the execution of system 700 and application.
Switching monitoring system 700 includes computer platform 702, and computer platform 702 can be on wired and wireless network
Transmitting and reception data, and routine and application can be performed.Computer platform 702 includes memory 704, and memory 704 can
With including volatibility and nonvolatile memory, such as read-only and/or random access memory (ROM and RAM), EPROM,
EEPROM, flash card or any commonly employed memory in computer platform.In addition, memory 704 can include one or more
Flash cell, or can be any second or third level storage device, for example, magnetizing mediums, optical medium, tape, or it is soft
Disk or hard disk.In addition, computer platform 702 also includes processor 730, processor 730 can be application specific integrated circuit
(" ASIC "), or other chipsets, logic circuit or other data processing equipments.Processor 730 can include realizing hard
Various processing subsystems 732 in part, firmware, software and combinations thereof, it, which makes it possible to realize in wired or wireless network, cuts
Change the mold the function of block 710 and the operability of the network equipment.
Computer platform 702 also includes realizing the communication module 750 in hardware, firmware, software and combinations thereof, described logical
Letter module 750 makes it possible between each part of switching monitoring system 700 and in switching monitoring system 700 and node B
108th, communicated between 109.Communication module 750 can include hardware, firmware, software necessary to establishing radio communication connection
And/or combinations thereof.According to described scheme, communication module 750 can include being used for convenient asked cell, node
B, the radio broadcasting of the measurement such as UE, hardware, firmware and/or the software of multicast and/or unicast communication.
Computer platform 702 also includes realizing the metric module 740 in hardware, firmware, software and combinations thereof, the degree
Amount module 740 makes it possible to receive the measurement for corresponding to the data especially from UE 110 from node B 108,109.At one
In scheme, switching monitoring system 700 can analyze the data received by metric module 740, and can monitor network and/or
UE, health status, capacity, service condition etc..For example, if metric module 740 returns to one or more indicated in multiple node B
Data poorly efficient individual node B, then switching monitoring system 700 can distribute time slot with allow UE perform leave the poorly efficient node B
The similar transfer of soft handover.
The memory 704 of switching monitoring system 700 includes network handover module 710, and network handover module 710 is operable to
The network of the convenient soft handover similar scheme of auxiliary.In an arrangement, handover module 710 is operable to as service node B 712
Time slot is distributed with adjacent node B 714.In an arrangement, handover module is operable with UE and may be coupled to the pre- of multiple cells
Definition it is Zone switched in.In another arrangement, time distribution can allow to come from serving cell and phase in different time-gap
The DL communications of adjacent cell, and can also allow for arriving serving cell and the UL of neighbor cell in different time-gap during switching
Communication.This distribution allows UE to lead to during the realization of soft handover similar scheme for different districts using different time-gap progress DL
Letter, and different districts can be directed to and carry out UL communications using different time-gap.
Fig. 8 is the node B 810 to be communicated in RAN 800 with UE 850 block diagram, and wherein RAN800 can be in Fig. 1
RAN 102, node B 810 can be the node B 108 in Fig. 1, and UE 850 can be the UE 110 in Fig. 1.In descending chain
In the communication of road, transmited processor 820 can receive data from data source 812 and receive control letter from controller/processor 840
Number.Transmited processor 820 is that the data, control signal and reference signal (for example, pilot signal) provide various signal transactings
Function.For example, transmited processor 820 can provide CRC (CRC) code for error detection, encoded and handed over
Knit to carry out forward error correction (FEC), based on various modulation schemes (for example, two-phase PSK (BPSK), QPSK
(QPSK), M phases phase-shift keying (PSK) (M-PSK), M quadrature amplitude modulations (M-QAM) etc.) map to signal constellation (in digital modulation), using it is orthogonal can
Become spreading factor (OVSF) to be extended, and be multiplied by scrambler to produce series of sign.Channel from channel processor 844
Estimation can be used for determining coding, modulation, extension and/or the scrambling scheme of transmited processor 820 by controller/processor 840.This
A little channel estimations can obtain from the reference signals launched of UE 850, or from included in the intermediate code 214 from UE 850
Feedback in (Fig. 2) obtains.The symbol that transmited processor 820 generates is supplied to transmitting Frame Handler 830 to create frame structure.Hair
Frame Handler 830 is penetrated by the way that the intermediate code 214 (Fig. 2) from controller/processor 840 and symbol are multiplexed to create this
Frame structure, so as to obtain series of frames.Then, these frames being supplied to emitter 832, it provides various signal conditioning functions,
Including amplifying, filtering and frame is modulated on carrier wave, downlink is carried out on the radio medium will pass through smart antenna 834
Transmission.Smart antenna 834 can control bidirectional self-adaptive aerial array or other similar beam techniques to realize by wave beam.
In UE 850, receiver 854 receives downlink transmission by antenna 852 and the transmission is handled, with extensive
Information in multiple modulation to carrier wave.The information that receiver 854 recovers is supplied to and receives Frame Handler 860, it enters to each frame
Row parsing, and intermediate code 214 (Fig. 2) is supplied to channel processor 894, and data, control and reference signal are supplied to
Reception processing device 870.Then, reception processing device 870 is performed by the performed processing of transmited processor 820 in node B 810
Inversely processing.More specifically, reception processing device 870 is descrambled and de-spread to symbol, modulation scheme is then based on to determine by saving
The most possible signal constellation point that point B 810 launches.The channel that these soft decisions can be calculated based on channel processor 894 is estimated
Meter.Then, row decoding is entered to soft decision and is deinterleaved to recover data, control and reference signal.Then, school is carried out to CRC code
Test to determine whether the decoding of frame succeeds.Then the data entrained by the frame of decoding success are supplied to data sink 872, it is represented
The application of operation in UE 850 and/or various user interfaces (for example, display).The control that the frame of decoding success is carried is believed
Number it is supplied to controller/processor 890.When reception processing device 870 does not successfully enter row decoding to frame, controller/processor 890
The repeat requests to those frames can also be supported using affirmative acknowledgement (ACK) and/or negative response (NACK) agreement.
In the uplink, the data from data source 878 and the control signal from controller/processor 890 are carried
Supply transmited processor 880.Data source 878 can represent the operation in UE 850 and various user interfaces (for example, keyboard)
Using.Similar to the function with reference to described by carrying out downlink transmission as node B 810, transmited processor 880 provides various
Signal processing function, including CRC code, encoded and interweaved to facilitate FEC, be mapped to signal constellation (in digital modulation), expanded using OVSF
Open up and scrambled to produce series of sign.In an arrangement, transmited processor 880 can include convenient soft handover phase
Like the handover module of scheme, as previously discussed.In an arrangement, handover module is operable to be embodied as service node
B 108 and node B 109 distributes time slot.This distribution can make UE 110 during the similar transformation of soft handover once establish and mesh
Mark the DL (be tuned to receive DPCH) and UL of neighbor cell (to DPCH transmittings).In this way, UE can measure P-CCPCH/DwPCH's
Power and timing, and estimate before UL DPCH transmittings for ULDPCH new power and timing.In this scheme, hair
Penetrating processor 880 can configure data are transmitted into service node B using the first of assignment group resource, divide while using
Data are transmitted at least one adjacent node B by second group of resource of group.
In addition, channel processor 894 is from the reference signals launched of node B 810 or from launching included in node B 810
Channel estimation obtained from feedback in intermediate code, it can be used for selecting appropriate coding, modulation, extension and/or scrambling scheme.
Symbol caused by transmited processor 880 will provide for transmitting Frame Handler 882 to create frame structure.Launch Frame Handler 882
By the way that the intermediate code 214 (Fig. 2) from controller/processor 890 and symbol are multiplexed to create the frame structure, so as to
To series of frames.Then, these frames are supplied to emitter 856, it provides various signal conditioning functions, including amplifies, filters
It is modulated to by frame on carrier wave, up-link transmission is carried out on the radio medium will pass through antenna 852.
Using with reference to described by the receiver function at UE 850 by the way of similar mode, at node B 810 pair
Up-link transmission is handled.Receiver 835 receives up-link transmission by antenna 834 and transmission is handled with extensive
Information in multiple modulation to carrier wave.The information that receiver 835 recovers is supplied to and receives Frame Handler 836, it enters to each frame
Row parsing, and intermediate code 214 (Fig. 2) is supplied to channel processor 844 and is supplied to data, control and reference signal and is connect
Receive processor 838.Reception processing device 838 is performed by the inversely processing of the performed processing of transmited processor 880 in UE850.Then
The data and control signal that the frame of decoding success can be carried are respectively supplied to data sink 839 and controller/processor.If
Some frames fail successfully to enter row decoding by reception processing device, then controller/processor 840 can also use affirmative acknowledgement (ACK)
And/or negative response (NACK) agreement supports the repeat requests to those frames.
Controller/processor 840 and 890 can be used for instructing operation in node B 810 and UE 850 respectively.For example, control
Device/processor 840 and 890 can provide various functions, including timing, peripheral interface, voltage-regulation, power management and other
Control function.The computer-readable medium of memory 842 and 892 can be separately stored for node B 810 and UE 850 number
According to and software.It can be used for allocating resources to UE in node B 810 scheduler/processor 846, and be UE dispatching downlink chains
Road and/or up-link transmission.
Fig. 9 is that execution is shown when illustrating a scheme according to the disclosure, carrying out in TD-SCDMA system radio communication
The functional block diagram 900 of example property module.In box 902, determine that service will be switched to adjacent node B by UE from service node B.
In one scheme, this determination can be performed by radio network controller.In another arrangement, when UE is located at executable soft handover
Similar scheme and the determination can be performed when UE can be with the geographic area of at least two Node B Communications.In another aspect
In, the determination can include determining that whether service node B and adjacent node B has the frame boundaries to be alignd in threshold range.Separately
Outside, in frame 904, first group of resource can assign for the communication between service node B and UE.In addition, in frame 906, the
Two groups of resources can assign for the communication between adjacent node B and UE.In an arrangement, it is logical that the resource, which can include,
Believe the time slot assigned.In this scheme, first group of resource can include assigning the time slot 2 for being used for uplink communication and be used for
The time slot 4 of downlink communication, second group of resource can include being used for the time slot 3 of uplink communication and lead to for downlink
The time slot 5 of letter.In frame 908, assignment of resources group can be transferred to UE.In an arrangement, service node B can be resource
Assignment is transferred to UE.
In addition, or optionally, in frame 910, the assignment of resources group transmitted can be received by UE.In frame 912, UE
Data can be transmitted to service node B using first group of assignment of resources.In frame 914, UE can use second group of resource point
Data are transmitted to adjacent node B by group.In an arrangement, the data can include at least one Packet Data Unit, wherein,
Each Packet Data Unit has related sequence number.In this scheme, the sequence number of association can be including at least one of following：
Sequence numbers of answer-mode (AM) PDU with 11 bits, the sequence numbers of unacknowledged mode (UM) PDU with 7 bits etc..In a scheme
In, transmit data using DPCH.
In frame 916, UE can also use first group of resource to receive data from service node B.In frame 918, UE may be used also
To receive data from adjacent node B using second group of resource.In the block 920, the data received can be analyzed and can be examined
Check weighing complex data.In an arrangement, detection duplicate data can include determining that with the data from service node B receptions at least
The sequence number that the sequence number of part association and at least a portion of the data with being received from adjacent node B associate matches.
In one configuration, device for wireless communications 850 includes：For first group of resource using assignment data
It is transmitted to service node B unit；With it is at least one adjacent for data being transmitted to using second group of resource of assignment simultaneously
Node B unit.In an arrangement, said units can be configured to perform the processor for the function of being enumerated by said units
880、882、890.In another arrangement, said units can be configured to perform the module of function enumerated by said units or
Any device.
Several schemes of telecommunication system are given by reference to TD-SCDMA system.The person skilled in the art will easily understand
, through the disclosure description each scheme can expand to other telecommunication systems, the network architecture and communication standard.Citing comes
Say, each scheme can expand to other UMTS systems, such as W-CDMA, high-speed downlink packet access (HSDPA), high speed
Uplink packet access (HSUPA), enhanced high-speed packet access (HSPA+) and TD-CDMA.Each scheme can also extend
To the system using following technology：Long Term Evolution (LTE) (in FDD, TDD or both patterns), advanced LTE (LTE-A) (
In FDD, TDD or both patterns), CDMA2000, Evolution-Data Optimized (EV-DO), Ultra-Mobile Broadband (UMB), IEEE
802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, ultra wide band (UWB), bluetooth, and/or expand to other
Suitable system.Used actual telecommunication standard, the network architecture and/or communication standard are by depending on the tool applied to system
Body is applied and overall design constraints.
Combined various apparatus and method describe several process device.These processors can use electronic hardware, meter
Calculation machine software or its any combination are realized.These processors be implemented as hardware be also implemented as software will depend on to system
The concrete application and overall design constraints applied.For example, the processor that provides in the disclosure, any portion of processor
Point or processor any combination can with the microprocessors of the various functions being configured to carry out described in disclosure full text,
Microcontroller, digital signal processor (DSP), field programmable gate array (FPGA), PLD (PLD), state
Machine, gate control logic, discrete hardware circuit and other proper treatment parts are realized.The processor that provides in the disclosure, place
Manage device arbitrary portion or processor any combination function can with by microprocessor, microcontroller, DSP or other fit
Software that the platform of conjunction performs is realized.
Software shall be interpreted broadly for mean instruction, instruction set, code, code segment, program code, program, subprogram,
Software module, application program, software application, software kit, routine, subroutine, object, executable program, perform thread,
Process, function etc., regardless of whether being referred to as software, firmware, middleware, microcode, hardware description language or other arts
Language.Software can be located on computer-readable medium.For example, computer-readable medium can include such as magnetic storage apparatus
The memory of (for example, hard disk, floppy disk, tape), CD (for example, compact disk (CD), digital universal disc (DVD)), smart card, sudden strain of a muscle
Deposit equipment (for example, card, rod, key floppy disc), random access memory (RAM), read-only storage (ROM), programming ROM
(PROM), erasable PROM (EPROM), electric erasable PROM (EEPROM), register or mobile dish.Although in the disclosure in full
Memory is shown as separating with processor in each scheme provided, but memory can the inside of processor (for example,
For cache or register).
Computer-readable medium can be embodied in computer program product.For example, computer program product can be with
The computer-readable medium being included in packaging material.How it will be recognized by those skilled in the art be best implemented in this
The function of being provided in open full text depends on the concrete application and overall design constraints applied to whole system.
It should be appreciated that the particular order or level of step in disclosed method are saying to exemplary process
It is bright.It should be appreciated that being based on design preference, the particular order or level of the step in method can rearrange.Appended
Claim to a method gives the key element of various steps with example sequence, but unless wherein especially narration, is otherwise not intended to
And limited by given particular order or level.
Description above is provided to enable any person skilled in the art to put into practice various schemes described herein.It is right
The various modifications of these schemes will be apparent to those skilled in the art, and generic principles defined herein can also
Suitable for other schemes.Therefore, appended claims are not intended to be limited to various schemes as shown herein, and be to fit to
The consistent four corner of the language of appended claims, wherein, unless specifically stated, with reference of the singulative to part
It is not intended to refer to " one or only one ", and refers to " one or more ".Unless expressly stated otherwise, otherwise term " one
Refer to a bit " one or more.Refer to that the phrase of " at least one " in bulleted list refers to any combination of project, including it is single
Element.For example, " at least one in a, b or c " means to include：a；b；c；A and b；A and c；B and c；And a, b and c.
All equivalent structures of the part of various schemes described in the known to those skilled in the art or disclosure full text known afterwards
All it is expressly incorporated herein with function by quoting, and is intended to be included by appended claims.In addition, no matter being disclosed herein is
No clearly to be quoted in the claims, any content disclosed herein is not intended to contribute to society.All authority
It is required that key element is not interpreted under 35U.S.C. § 112, the 6th section of regulation, unless the key element clearly " is used for ... with phrase
Module " statement, or the key element is stated with phrase " the step of being used for ... " in claim to a method.
Claims (8)
1. a kind of be used to realize from service node B to the radio network controller (RNC) of adjacent node B switching, the RNC bags
Include：
Switching monitoring system, for monitoring, coordinating and/or controlling the service node B and the adjacent node B；And
Handover module, included in the switching monitoring system, and for distributing the first component group money to the service node B
Source, second group of assigned resources is distributed to the adjacent node B, wherein, the service node B is configured with described first group
Assigned resources receive data from user equipment (UE), and the adjacent node B is configured with the second component group money
Source receives the data from the UE, and wherein, the RNC is configured as by the data received from the UE
Detection duplicate data is simultaneously entered based on the sequence number associated with least a portion of the data to the reception data from the UE
Rearrangement sequence, to realize the switching from the service node B to the adjacent node B；
Wherein, rearrangement is entered to the reception data from the UE based on the sequence number associated with least a portion of the data
Sequence further comprises：
If being not received by the first sequence number when receiving the second sequence number, the data are stored, wherein, first sequence number
It is sequence number than second sequence number earlier；
Wait one period of the first sequence number；
Ignore first sequence number after the period；And
Sequence number window for processing data is updated to second sequence number.
2. RNC as claimed in claim 1, wherein, based on the sequence number associated with least a portion of the data to from
The reception data of the UE reorder further comprising：
If the sequence number associated with least a portion of the data outside the sequence number window for processing data, abandons institute
State data.
3. RNC as claimed in claim 1, wherein, the service node B and the adjacent node B have in threshold range
The resource frame boundaries of alignment.
4. RNC as claimed in claim 1, wherein, first group of assigned resources include the time slot 2 for uplink communication
With the time slot 4 for downlink communication, and wherein, second group of assigned resources include being used for the uplink communication
Time slot 3 and time slot 5 for the downlink communication.
5. a kind of user equipment (UE), including：
At least one processor；
Coupled to the memory of at least one processor；And
Handover module, for applying first group of assigned resources for service node B, and the second component is applied for adjacent node B
Resource is sent, wherein, the UE is configured with the disposable foundation of second group of assigned resources and the adjacent node B
Both line link and up-link,
Wherein, the UE is further configured to：Using first group of assigned resources data are received from the service node B；
Using second group of assigned resources data are received from the adjacent node B；Based on related at least a portion of the data
The sequence number of connection reorders to the data that are received from the service node B and from the adjacent node B data received, and
Wherein,
Based on the sequence number associated with least a portion of the data to the data that are received from the service node B and from described
The data that adjacent node B is received reorder further comprising：
If being not received by the first sequence number when receiving the second sequence number, the data are stored, wherein, first sequence number
It is sequence number than second sequence number earlier；
Wait one period of the first sequence number；
Ignore first sequence number after the period；And
Sequence number window for processing data is updated to second sequence number.
6. UE as claimed in claim 5, wherein, first group of assigned resources include the time slot 2 for uplink communication
With the time slot 4 for downlink communication, and wherein, second group of assigned resources include being used for the uplink communication
Time slot 3 and time slot 5 for the downlink communication.
7. UE as claimed in claim 5, wherein, the UE is further configured to：Based at least one with the data
The sequence number of split-phase association, weight is detected in the data received from the service node B and the data received from the adjacent node B
Complex data.
8. UE as claimed in claim 7, wherein, based on the sequence number associated with least a portion of the data, from institute
State the data of service node B receptions and detection duplicate data further comprises from the data of adjacent node B receptions：It is determined that
The sequence number and the number with being received from the adjacent node B that at least a portion of data with being received from the service node B associates
According at least a portion associate sequence number whether match.
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| CN2010800012028A Pending CN102124781A (en) | 2009-10-07 | 2010-05-11 | Apparatus and method for facilitating handover in td-scdma systems |
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| CN101472305B (en) * | 2007-12-26 | 2012-01-25 | 电信科学技术研究院 | Method, system and device for implementing district switch |
| US10505757B2 (en) | 2014-12-12 | 2019-12-10 | Nxp Usa, Inc. | Network interface module and a method of changing network configuration parameters within a network device |
| US10176012B2 (en) | 2014-12-12 | 2019-01-08 | Nxp Usa, Inc. | Method and apparatus for implementing deterministic response frame transmission |
| CN106341368A (en) * | 2015-07-06 | 2017-01-18 | 中兴通讯股份有限公司 | Data processing method and device |
| US10628352B2 (en) | 2016-07-19 | 2020-04-21 | Nxp Usa, Inc. | Heterogeneous multi-processor device and method of enabling coherent data access within a heterogeneous multi-processor device |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2011043847A1 (en) | 2011-04-14 |
| CN104394557A (en) | 2015-03-04 |
| US20120188987A1 (en) | 2012-07-26 |
| HK1207505A1 (en) | 2016-01-29 |
| TW201127120A (en) | 2011-08-01 |
| CN102124781A (en) | 2011-07-13 |
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